diff --git a/mambawelcome/mambawelcome.sh b/mambawelcome/mambawelcome.sh
index fb30af9..a0a1d59 100755
--- a/mambawelcome/mambawelcome.sh
+++ b/mambawelcome/mambawelcome.sh
@@ -150,7 +150,7 @@ sh -c "echo $INSTALL_ROOT_PASSWORD | passwd --stdin" || {
 }
 
 # update grub device mappings and config
-/usr/sbin/grub-mkdevicemap
+/usr/sbin/grub-mkdevicemap -n
 /usr/sbin/update-grub
 
 # configure suspend (from suspend rpm post script) and recreate mkinitramfs